Laws of illumination in Electrical: There are two laws of illumination Law of inverse squares and Lambert's cosine law. Law of Inverse Squares: If a source of light which emits light equally in all directions…
What is illumination? - Terms used in Illumination Light is the prime factor in the human life as all activities of human beings ultimately depend upon the light. Where there is no natural light, use…
Advantages and Disadvantages of Arc Welding: The Advantages and Disadvantages of Arc Welding having its distinctive merits and applications. The advantages of arc welding with dc lie in the higher arc stability and the degree…
Electric Welding Machine Working Principle: The electric welding machine sets may be either dc or ac type. 1. DC Welding Sets: Such sets are of two types namely (i) generator type and (ii) rectifier type.…
Power Sources for Welding Process: Both dc and ac are used for electric arc welding, each having its particular applications; in some cases either is suitable. The electric properties of the arc determines the requirements…
Electronic Control in Resistance Welding Process: As there are several factors, i.e., current, pressure, heat, time, to be considered, manual control does not yield good results in case of resistance welding. For the precise control…
Resistance Welding Machines - Overview and Circuit Diagram: Resistance welding machines incorporates a transformer, suitable electrodes for supplying current to the weld and arrangement for controlling the mechanical pressure, and finally, means for controlling the…
What is Electrodes? - Definition, Types, Applications and Advantages An electrode is a piece of wire or rod (of a metal or alloy), with or without flux covering, which carries current for welding. At one…
Laser Beam Welding - Definition, Block Diagram and Workings: Laser beam welding is a welding process that uses the heat from a laser beam impinging on the joint. The process is used without a shielding…
Electron Beam Welding - Working Principle, Advantages, Disadvantages and Applications: Basically, electron beam welding in vacuum utilises the kinetic energy of electrons travelling with high velocity in a high vacuum (10-3 to 10-5 mm Hg). When the electrons…
